In vitro study of intraoral welding procedures for pure titanium.
This in vitro study investigated the temperature changes experienced during electric welding of titanium to determine if the welding heat presented a potential danger to pulpal vitality. Welds were applied to cast titanium simulations of a three-unit fixed partial denture containing two thermocouples measuring temperature changes. Mean maximal temperature changes were 127.4 degrees F near the weld and 68.6 F degrees at the axial wall. The mean times for the temperature to drop to within 10.0 degrees F of the starting temperature ranged from 84.1 to 133.7 seconds. The relatively low temperatures recorded in this study suggest that further investigation is warranted into the use of the welder intraorally.
Haney
S C
SC
Dental Department, National Naval Medical Center, Bethesda, Maryland, USA.
Meiers
J C
JC
D003735:Dental Casting Technique; D003830:Denture, Partial, Fixed; D005069:Evaluation Studies as Topic; D006801:Humans; D066298:In Vitro Techniques; D013696:Temperature; D013814:Thermal Conductivity; D014025:Titanium; D014896:Welding / Q000295:instrumentation / Q000379:methods* / Q000706:statistics & numerical data
D014025:Titanium